630828907 has 8 divisors (see below), whose sum is σ = 634477536. Its totient is φ = 627190272.

The previous prime is 630828871. The next prime is 630828917. The reversal of 630828907 is 709828036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630828907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630828917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149673 + ... + 153829.

It is an arithmetic number, because the mean of its divisors is an integer number (79309692).

Almost surely, 2^630828907 is an apocalyptic number.

630828907 is a deficient number, since it is larger than the sum of its proper divisors (3648629).

630828907 is a wasteful number, since it uses less digits than its factorization.

630828907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4997.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 630828907 is about 25116.3075908860. The cubic root of 630828907 is about 857.6376972051.

The spelling of 630828907 in words is "six hundred thirty million, eight hundred twenty-eight thousand, nine hundred seven".